In terms of digital logic, a LOW voltage usually represents
A) an open. B) a one.
C) an illegal condition. D) a zero.
D
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Assume that a ceiling measures 42'-6" × 30'-6" and 2' × 2' tiles are being used. The width of the border tiles on each side of the ceiling that runs parallel to the two 30'-6" walls must be _____.
a. 15" b. 20" c. 25" d. 30"
Interiorscape sales and design staff should create a(n) ____ that aids in the initial specification process;
if clients are present during an initial walk-through of a space to be interiorscaped, distractions can cause staff to forget to consider the most basic things.
a. plan c. checklist b. itinerary d. calm atmosphere
When a truck with a pneumatic suspension travels over a bumpy surface, what prevents the height control valve from rapidly cycling (inflating/exhausting) in response to each bump?
A. built in response delay mechanism B. compressibility of air in springs dampens rapid changes in pressure C. both A and B D. neither A nor B
Three phase motors have ____.
A. three start and three run windings for each phase B. one start and one run winding for each phase C. run windings only D. a start switch in each phase circuit